Chapter 9 Managing The Cisco Crs Datastores; About The Crs Datastore - Cisco CRS-1 - Carrier Routing System Router Administration Manual

About the CRS Datastore

Managing the Cisco CRS Datastores
Datastores are components that allow you to manage and monitor historical,
repository, and configuration data across all servers in the Cisco CRS cluster The
following sections provide more information on Cisco CRS datastores.
About the CRS Datastore, page 9-1
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• The CRS Datastore Control Center, page 9-4
The Publisher Activation Page, page 9-7
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Configuring Trace Settings, page 9-8
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• Starting, Stopping, and Restarting Datastores, page 9-10
Configuring Alarm Settings, page 9-11
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The CRS Cluster uses the publisher/subscriber database model for data
replication across the system. Under normal circumstances, the publisher acts as
the source of data and the subscriber acts as the target for the data.
The publisher/subscriber database model enables CRS to provide
high-availability and failover support. To support this on the database level, the
data must be available on multiple nodes of the cluster. To have such data
availability, replication is used for the Agent, Historical, and Repository
datastore. (The Configuration datastore does not use replication; instead, it uses
atomic transaction to commit data changes to all active Configuration datastore in
the cluster.)
Cisco Customer Response Solutions Administration Guide, Release 4.1(1)
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